Mixing valve



July 22, 1924. I 1,502,483

r L. F. OFLAHERTY ET AL MIXING VALVE Original Filed Oct. 23 1922 2Sheets-Sheet 1 m 2 z fly July 22, 1924. 1,502,483

) L. F. OFLAHERTY" ET AL MIXING VALVE Original Filed Oct. 23, 1922 2 seets-sh m 2 Patented July 22, 1924.

-' entree STATES 15%,483 PATENT series.

LEO F. OFLAHERTY'AND WILLIAM L. KIRKPATRICK, or stem, ILLIIvoIs.

7 MIXING VALVE.

Original application filed October 23, 1922, Serial No. 596,219. Dividedand this application filed Novemb'r 5, 1923. serial no. 672,726.

such as are used on bath tubs, basins, sinks,

etc, and has for its oloject to provide a particularly durable andmexpensive mixing valve constructed from a mnnmum of parts and whichwill mix hot and coldwat'er to any degree of temperature to suit theuser. Another object is to provide a strongand compact valve by makingits inlet'control means, its discharge control means, and its operatingthreads all integral with the valve stem. 7

Other objects will appear hereinafter. This is a division of'applicantsprior case for mixing valvesSerial No. 596,219, filed October 23, 1922.

The invention consists inthe combinations and arrangements of partshereinafter described and claimed.

The invention will be best understood by reference to the accompanyingdrawings,

= forming a part of this specification, and. in

which,

Fig. 1 is a plan view of. our invention with the valve closed; V [I Fig.2 is a vertical section through the angles to Fig. 2, on line 33"'ofFig; 1;

Fig. 4: is a horizontal section on line 4-1 of Fig. 3, showing the'valve closed;

Figs. 5, 6, and 7, are horizontal sections, similar to Fig. 4, but eachshowing thevalve turned anti-clockwise through an additional angle of90, Fig. 5- showing the coldwater port full open and: the hotwater portclosed, Fig. 6 showing both ports half open, and Fig. 7 showing the hotwater port 'fullo'p'n and the cold waterport closed; and;

Fig. 8 is a vertical section similar to Fig. 2, but showing the valve atits uppermost position with the hot water port full open and the coldwater port closed.

. The particular form of our invention illustrated in this applicationcomprises a casing 15 having a contracted receiving end'of said chamber16 constituting aimixing chamber 19. 7 e

In order to simplify the valve construction and make it durable, themain movable members are made in one casting, thus the stem 22 is formedintegral with the inlet control means or core 23, with the dischargecontrol means or sealing valve-24, and with the operating threads 25,said threads engaging in'thr'eaded grooves 26 provided in the upperportion of the casing.

The core 23 is constructed with a solid interior and is provided with anupper peripheral notch or pocket (0 substantially segmental in form,which is registerable with the cold water inlet (C) and opens directlyinto the mixing chamber 19; said core is further provided with a similarlower peripheral notch or pocket (h) which isregisterable with the hotwater inlet (H) and opens directlyinto'the receiving portion or; space16 Saidcore is als'o provided with a slanting bore 27 therethrough whichconnects the receiving portion 1-6 with the pocket ('0'), and therebyconnects'the pocket (h) as well as the receiving portion 16' with themixing chamber 19 through said pocket (0').

The sealingvalve 24 is provided with a compression gasket'28 as bestshown in Fig. 3, to engage an annular rib 29 formed at thenpper end ofthe mixing chamber 19, and a collar 30 retains said gasket in position'on thev'alve.

A handle 31 is detachably mounted on the stem" 22 for rotating said stemas best shown in'Fig. 8, or in any other approved manner, and-thet'op ofthe casing is sealed by means of a. disc 32, gasket 33 and cap 34, aspace 35 being provided in the cap to receive the suitable packing.

It is apparent from the above description and the drawings that thevalve casing of this mixing valve consists of one integral member andthat the main operating means of the movable valve mechanism alsoconsists of one integral member, in other words that themain valveelements of this device consist of only two distinct castings; and it isfurthermore apparent that this valve can be readily adjusted or set inorder to mix the hot and cold water to any desired degree oftemperature, and that when thevalve is closed, the mixing chamber willbe sealed by means of the sealing valve 24 firmly engaging the annularrib 29, thereby, positively preventing any leakage of the valve to thedischarge chamber and the outlet.

While we have illustrated and described the preferred form ofconstruction for carrying our invention into effect, this is capable ofvariation and modification without departing from the spirit of theinvention. Vi e, therefore, do not wish .to be limited to the precisedetails of construction set forth, but desire to avail ourselves of suchvariations and modifications as come within the scope of the appendedclaims.

Having described our invention What we claim as new and desire to secureby Letters Patent, is:

l. A mixing valve comprising a casing having a plurality of inlets andan outlet, a

valve stem with a solid integral core, periph eral pockets on said coreregisterable with said inlets, and a small bore through said coreproviding communication between said pockets.

.2. A mixing valve comprising a casing provided with inlets and anoutlet, a valve core provided with a pocket for each inlet, a mixingchamber in said casing in open communication with one of said pockets, aspace in said casing in open communication with the other of saidpockets, and a diagonal bore extending through said core from its bottomto the pocket which communicates with the mixing chamber.

3. A mixing valve comprising a casing proided with inlets and an outlet,a valve core provided with a pocket .t'or each inlet, a mixing chamberin open communication with one of said pockets, a lower chamber portionin open communication with the other of said pockets, a bore throughsaid core providing communication between said pockets, and a sealingvalve constructed integral with said core for closing communica tionbetween said mixing chamber and the outlet.

4- A mixing valve comprising a casing 5. A m1x1ng valve comprising acasing.

having inlets and an outlet, a mixing chamber registerable with one ofsaid inlets and the outlet, a valve stem having an integral valve memberfor closing communication between said mixing chamber and outlet, a

solid core integral with said stem and pro vided with a segmental pocketfor connecting one inlet with said mixing chamber, a diagonal borethrough said core connecting said pocket with a space in the lower partof said casing, and a segmental pocket at the lower part of said corefor connecting another inlet with said space.

G. A mixing valve comprising a casing having inlets and an outlet, amixing chamher registerable with one of said inlets and v the outlet, avalve stem having an integral valve member for closing communicationbetween said mixing chamber and outlet, a solid core integral with saidstem and pro-v vided with a segmental pocket for connecting one inletwith said mixing chamber, a diagonal bore through said core connectingsaid pocket with a space in the lower :part of said casing, a segmentalpocket at the lower part of said core for connecting another in let withsaid space, and threaded means integral with said stem for adjustingsaid valve to provide the desired mixing of the fluids from said inlets.

7. A mixing valve comprising. a casing having its inlet portion, mixingportion, discharge portion, and operating threads con structed in onecasting; said valve :having all of its movable mechanism formed integraland including astem, operating threads thereon, a solid valve core withseparated peripheral pockets, and a bore through said core .operativelyconnecting said pockets.- In testimony whereof we have signed our namesto this specificationin the presence of two subscribing witnesses.

LEO F. OFLAHERTY. WILLIAM L. KIRKPATRICK. Witnesses: GUSTAV F. VoDIcKA,FRANK OFLAHERTY.

